79400 ÷ 5 = 15880 R0
We're going to perform division on 79400 with 5 as the divisor.

Step 1:
5 goes into 7 1 times with a remainder of 2.
Write down 1 as next digit of of the result. 
Result so far: 1
Subtract 5 from 7 to get 2.
Bring next digit (9) of the dividend behind the 2 and repeat the process: 29 / 5

Step 2:
5 goes into 29 5 times with a remainder of 4.
Write down 5 as next digit of of the result. 
Result so far: 15
Subtract 25 from 29 to get 4.
Bring next digit (4) of the dividend behind the 4 and repeat the process: 44 / 5

Step 3:
5 goes into 44 8 times with a remainder of 4.
Write down 8 as next digit of of the result. 
Result so far: 158
Subtract 40 from 44 to get 4.
Bring next digit (0) of the dividend behind the 4 and repeat the process: 40 / 5

Step 4:
5 goes into 40 8 times with a remainder of 0.
Write down 8 as next digit of of the result. 
Result so far: 1588
Subtract 40 from 40 to get 0.
Bring next digit (0) of the dividend behind the 0 and repeat the process: 0 / 5

Step 5:
5 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of of the result. 
Result so far: 15880
Subtract 0 from 0 to get 0.

The final result is 15880 with a remainder of 0.